<?php

namespace App\Http\Controllers\Admin;


use Illuminate\Http\Request;
use Illuminate\Support\Facades\Gate;
use App\Http\Controllers\Controller;
use App\Http\Requests\Admin\StorePermissionsRequest;
use App\Http\Requests\Admin\UpdatePermissionsRequest;
use App\Http\Models\Admin\Permission_;
use App\Http\Models\Admin\ClassifyPermissions;
use App\Http\Models\Admin\PermissionsDetails;
use Validator;

class PermissionsController extends Controller
{
    /**
     * Display a listing of Permission.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        if (!Gate::allows('watch power')) {
            return abort(401);
        }
        $permission = new Permission_();
        $permissions = $permission->with(['hasDetails', 'classify_belongsToMany'])->get();

        return view('admin.manage.permissions.index', compact('permissions'));
    }

    /**
     * Show the form for creating new Permission.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        if (!Gate::allows('create power')) {
            return abort(401);
        }
        $classify = ClassifyPermissions::where(array('parent_id' => 0))->orderBy('rank', 'DESC')->with(['classifyHasMany'])->get();

        return view('admin.manage.permissions.create', compact('classify'));
    }

    /**
     * Store a newly created Permission in storage.
     *
     * @param  \App\Http\Requests\StorePermissionsRequest  $request
     * @return \Illuminate\Http\Response
     */
    public function store(StorePermissionsRequest $request)
    {
        if (!Gate::allows('create power')) {
            return abort(401);
        }
        $this->validator($request->all())->validate();
        $per_arr = $request->all();
        $classify_ids = $per_arr['classify'];
        unset($per_arr['classify'], $per_arr['explain']);

        $permission = Permission_::where(array('name' => $per_arr['name']))->get();
        //如果此权限已经存在
        if (!empty(count($permission))) {
            return back()->with('alert_message', ['type' => 'error', 'message' =>  '此权限名已存在!']);
        }

        $inser_per = Permission_::create($per_arr);
        $inser_per->classify_belongsToMany()->sync($request->input('classify'));

        //操作关联数据 (没有找到关联存储比较好的方法 这里使用笨方法)
        $details = new PermissionsDetails;
        $details->permission_id = $inser_per->id;

        $permission = $details->where(array('permission_id' => $inser_per->id))->get();
        $details->explain = $request->input('explain');

        if (empty(count($permission))) {
            $details->save();
        } else {
            $details->update();
        }


        return redirect()->route('admin.manage.permissions.index');
    }


    /**
     * Show the form for editing Permission.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        if (!Gate::allows('update power')) {
            return abort(401);
        }
        $permission = Permission_::with(['hasDetails','classify_belongsToMany'])->findOrFail($id);
// dd( $permission->hasDetails->id );die;
        $classify = ClassifyPermissions::where(array('parent_id' => 0))->orderBy('rank', 'DESC')->with(['classifyHasMany'])->get();

        return view('admin.manage.permissions.edit', compact('permission', 'classify'));
    }

    /**
     * Update Permission in storage.
     *
     * @param  \App\Http\Requests\UpdatePermissionsRequest  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(UpdatePermissionsRequest $request, $id)
    {
        if (!Gate::allows('update power')) {
            return abort(401);
        }


        $per_arr = $request->all();
        $classify_ids = $per_arr['classify'];
        unset($per_arr['classify'], $per_arr['explain']);

        $permission = Permission_::findOrFail($id);
        $permission->update($per_arr);
        $permission->classify_belongsToMany()->sync($request->input('classify'));

        //操作关联数据 (没有找到关联存储比较好的方法 这里使用笨方法)
        $details = new PermissionsDetails;
        $is_permission = $details->where(array('permission_id' => $permission->id))->first();
        $is_permission->explain = $request->input('explain');
        $is_permission->permission_id = $permission->id;

        if (empty($is_permission)) {
            $details->save();
        } else {
            $is_permission->update();
        }



        return redirect()->route('admin.manage.permissions.index');
    }


    /**
     * Remove Permission from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        if (!Gate::allows('users_manage')) {
            return abort(401);
        }
        $permission = Permission_::findOrFail($id);
        $permission->delete();

        return redirect()->route('admin.manage.permissions.index');
    }

    /**
     * Delete all selected Permission at once.
     *
     * @param Request $request
     */
    public function massDestroy(Request $request)
    {
        if (!Gate::allows('users_manage')) {
            return abort(401);
        }
        if ($request->input('ids')) {
            $entries = Permission_::whereIn('id', $request->input('ids'))->get();

            foreach ($entries as $entry) {
                $entry->delete();
            }
        }
    }
    /**
     * Get a validator for an incoming change password request.
     *
     * @param  array  $data
     * @return \Illuminate\Contracts\Validation\Validator
     */
    protected function validator(array $data)
    {
        return Validator::make($data, [
            'classify' => 'required',
            'explain' => 'required',
        ]);
    }
}
